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@uiten gratins latwt @ffice JAMES B. STUART, OF BUNKER HILL, ILLINOIS.

Let/ers Patent 1Y0. 62,151, dated February '19, 1867.

the Stimuli referti tu in tlgisc items ntcnt mit making pnt nf tlg-e saine.

TO ALL WI-IOM IT MAY CONCERN: p

Be it known that I, JAMES B. STUART, of Bunker Hill, in the county of Macoupin, and State et' Illinois,

lhave invented a new and useful Improvement in Metallic Hubs for the Whcelsiof Vehicles; Aand I do' hereby declare that the following is n. full clcnr, und exact description'thereof, which will enable others skilled in the art to make and use the seme, reference boing had to thc accompanying drawings, forming part of this specification, in whichy Y i i i Figure 1 is a. longitudinal vert-ical section of myinvention taken in the line :1: :v,.g. 1.

Figure 2, a transverse section ofthe saine taken in the line 7/ y, tig. 1.

Figure 3, n side view of a' portion ofthe same.-

Similar letters of reference indicate like pzirts.

This invention relates to u new und useful improvement in metallic hubs for the wheels of vehicles, and it consists in a novel manner oi'sccuring the sppkes in the hub, as hereinafter fully shown und described, whereby the spokes are firmly retriineflin position :ind rendered capable of being readily detached andfreplztced by new ones whenever required.

V A represents the hub of n wheel which is cast witlln circular plate or collar, B, having lateral ilanges or projections a, between which the spokes areittcd. The flanges or projections a have radial sides for the greater portion of their length, the outer parts of the sides heilig considerably inclined so as to be of V-form, as shown atb, g. 2. The inner ends or tenonsofthe spokes s1-rc fitted Ain the spaces c, between the flanges or'projections a, the inner parts, d, of said spaces grriduiilly increasing in width from their lower ends 11p-to the ilcring parts p b of the flanges, where they commence' to diminish in width to their outer ends, as shown at c; These spaces,

in consequence-of being of the form described, prevent the spokes from working in a direction radial with the hub, that is, inward or outward from the same, and the spaces are not of the seme width throughout their entire length, but gradually diminish in width from their open ends to the collar B, es shown clearly in iig. 3. C represents a. collar` or circuler plate, which is fitted loosely on the hub A, und is secured against the ends of the ange's a by scrcw-bolts, shown in red. This collar by beingscrewed up forces the inner ends or tenons of the spokes into the spaces between the flanges, the wedge or taper-shape of said iinges causing the spokes to be held firmly in position,and it is designed in practice to have the inner ends o r tenons of the spokes of such a. width that they will not at first be forced entirely into ysaid spaces, but allow room to admit of the spokes ,being further forced into the spaces in case of shrinkage. By this :irrangemcnt the spokes are eifectually prevented from workingin any direction. They cannot he forced inwrrd so as to loosen the tire on the Wheel, and in case of shrinking they can be tightenedA by screwing up the collar C'.`

This invention may be used for double as well es single rows of spokes. For a double row of'spokes the hub p is cast with two rows of anges a.

Having thus described my invention, I claim as new, und desire to secure by Letters Patent- A metallic huh for the wheels of vehicles cast with n. collttr B, having lateral iizinges or projections a, of the form shown und described, so that the spaces between the Hongos which receive the spokes will bc of wedge or taper form longitudinally or in `:JJ direction parallel with the hub, and of double taper form in :t radialdirection, in combination with the loose collar C, fitted on the hub and secured to the fixed collar B by bolts, substantially as und for the purpose herein set forth.

JAMES B. STUART.

Witnesses: i

' SAMUEL Boorn,

W. F. JOHNSON. 

